C1406 Toyota Code - Open or Short in Front Speed Sensor Left Circuit
Quick Answer
The speed sensor detects the wheel speed and sends the appropriate signals to the Skid Control ECU (Brake Actuator Assembly). Common causes include Faulty Front Speed Sensor Left, Front Speed Sensor Left harness is open or shorted, Front Speed Sensor Left circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C1406 Toyota indicates Open or Short in Front Speed Sensor Left Circuit.
- Common causes
- Common causes include Faulty Front Speed Sensor Left, Front Speed Sensor Left harness is open or shorted, Front Speed Sensor Left circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C1406 Toyota Description
What are the Possible Causes of the DTC C1406 Toyota?
- Faulty Front Speed Sensor Left
- Front Speed Sensor Left harness is open or shorted
- Front Speed Sensor Left circuit poor electrical connection
- Faulty Skid Control ECU (Brake Actuator Assembly)
How to Fix the DTC C1406 Toyota?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1406 Toyota code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the C1406 Toyota code?
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Need Help with the Code?
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Information for Specific Toyota Models
- C1406 2007 ToyotaFJ Cruiser — Open Or Short In Front Speed Sensor Left Circuit
- C1406 2008 Toyota FJ Cruiser — Open Or Short In Front Speed Sensor Left Circuit
- C1406 2009 Toyota FJ Cruiser — Open Or Short In Front Speed Sensor Left Circuit
- C1406 2010 Toyota FJ Cruiser — Open Or Short In Front Speed Sensor Left Circuit
- C1406 2011 Toyota FJ Cruiser — Open Or Short In Front Speed Sensor Left Circuit
- C1406 2012 ToyotaFJ Cruiser — Open Or Short In Front Speed Sensor Left Circuit
- C1406 2013 Toyota FJ Cruiser — Open Or Short In Front Speed Sensor Left Circuit
- C1406 2013 Toyota RAV4 — Open or Short in Front Speed Sensor Left Circuit
- C1406 2014 Toyota RAV4 — Open or Short in Front Speed Sensor Left Circuit
- C1406 2015 Toyota RAV4 — Open or Short in Front Speed Sensor Left Circuit
- C1406 2016 Toyota RAV4 — Open or Short in Front Speed Sensor Left Circuit
- C1406 2017 Toyota RAV4 — Open or Short in Front Speed Sensor Left Circuit
- C1406 2018 Toyota RAV4 — Open or Short in Front Speed Sensor Left Circuit
Frequently Asked Questions about C1406 Toyota Code
1. What does the OBDII code C1406 mean on a Toyota?
C1406 indicates an open or short circuit in the front left speed sensor wiring or circuit, which is part of the ABS system.
2. What are the common symptoms of C1406 on a Toyota?
Symptoms may include the ABS warning light being illuminated, loss of ABS function, or reduced braking performance.
3. What causes the C1406 code to appear?
Common causes include a faulty front left wheel speed sensor, damaged wiring, corroded connectors, or issues with the ABS control module.
4. Can I still drive my Toyota with a C1406 code?
You can drive, but the ABS system may not function properly, increasing the risk of skidding or loss of control during hard braking.
5. How do I diagnose the C1406 code?
Diagnosis involves inspecting the front left speed sensor, checking for damaged wiring, testing the sensor's resistance, and ensuring proper connectivity.
6. How do I fix the C1406 code on my Toyota?
Repairs may include replacing the front left speed sensor, repairing or replacing damaged wiring, or cleaning corroded connectors.
7. How much does it cost to fix the C1406 code?
Repair costs vary but typically range from $100 to $300, depending on whether you need to replace the sensor or repair wiring.
8. Can a dirty wheel hub cause the C1406 code?
Yes, debris or buildup around the wheel hub can interfere with the speed sensor's readings, potentially triggering the code.
9. Will clearing the C1406 code fix the problem?
Clearing the code may temporarily turn off the warning light, but the underlying issue must be resolved to prevent the code from returning.
10. Is the C1406 code related to other ABS codes?
Yes, it may be accompanied by other ABS-related codes if there are additional issues within the braking system.
Discuss the causes and fixes for C1406 Toyota OBDII Code
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Yes I replaced the left front speed sensor and I'm still getting open/ circuit fault c1406
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Let me check the service manual for more information. What model and year is your vehicle?
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